Re: Perceived weaknesses of postgres

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От Stephen Cook
Тема Re: Perceived weaknesses of postgres
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Msg-id 47B4D98E.5040801@gmail.com
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Ответ на Re: Perceived weaknesses of postgres  (Magnus Hagander <magnus@hagander.net>)
Ответы Re: Perceived weaknesses of postgres
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Magnus Hagander wrote:
> I would guess they're referring to the ability to "pin" a table into
> memory, so that it always stays in the cache regardless of what else the
> database is doing. There is a narrow use-case where this can be very
> useful, but it can also be a very dangerous tool (hint: if you pin a
> table that grows up to say 80-90% of your RAM size, your database will
> not be fast for anything else)

I know that MS removed this ability in SQL Server 2005 for pretty much
this reason; it's usefulness was greatly outweighed by people screwing
up their systems by not calculating things correctly.

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